Peterson, R. H., Gauger, D. J., & Lankford, R. S. (1953). Microfossils of the Upper Cretaceous of northeastern Utah and southwestern Wyoming.
Chicago-Zitierstil (17. Ausg.)Peterson, Reed H., David J. Gauger, und Robert S. Lankford. Microfossils of the Upper Cretaceous of Northeastern Utah and Southwestern Wyoming. Salt Lake City, Utah, 1953.
MLA-Zitierstil (9. Ausg.)Peterson, Reed H., et al. Microfossils of the Upper Cretaceous of Northeastern Utah and Southwestern Wyoming. 1953.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.